Karl is an one-time character from the All Grown Up! episode, "Brothers Grimm" and he is voiced by Dee Bradley Baker. Gallery You can find Karl gallery here. Retrieved from "https://rugrats.fandom.com/wiki/Karl_(Character)?oldid=221229" Categories: One-time characters Characters All Grown Up! All Grown Up! characters Humans Males Community content is available under CC-BY-SA unless otherwise noted.